It should be. New languages should take a hard, firm but fair, stance on style when they are first created. It is the only opportunity they will get. You can always loosen it later if you really feel the need, but you can't tighten it later on (evidenced by attitudes exactly like yours.) I mean, unless you like endless style flamewars and bickering...

Even ignoring that benefit, taking a stance on style like Go has done allows style to be handled mechanically, which is more in line with the general hacker attitude anyway. Offload that stuff to the computer; let the programmer concentrate on doing the things the computer can't.